Matematički model peći u Rafineriji nafte Rijeka

master's thesis

• Title (english): Mathematical Model of Heater in Rijeka Refinery
• Author: Viktor Irsag
• Mentor: Mislav Čehil (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-12-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U ovome se radu analizira generator pare s plinskim izgaranjem, a naročito utjecaj mimoilazećih dimnih plinova na ogrjevne površine kao i stanje medija u vodenoparnom traktu.
Simulirana su 4 stanja opterećenja peći promjenjivih svojstava:
a) Radni režim za 72 t/h otpadnog plina i 24,5 t/h pare
b) Radni režim za 72 t/h otpadnog plina i 30 t/h pare
c) Radni režim za 102 t/h otpadnog plina i 30 t/h pare
d) Radni režim za 72 t/h otpadnog plina i 50 t/h pare
Cilj zadatka je utvrditi utjecaj zaobilaženja dimnih plinova na sam rad generatora, a to je postignuto prikazom promjene temperature ovisno o postotku zaobiđenih dimnih plinova u pojedinim dijelovima kotla. U uvodu je dan osnovni princip rada takvoga postrojenja te informacije o gorivu. Na kraju rada je dan zaključak o izvedenom radu energetskog postrojenja.

Abstract (english)

Steam generator with gas burners is analyzed in this thesis, specifically the effects of the bypass of the flue gases on the heating surfaces and the condition of the medium in the water tract.
Four conditions are studied:
a) Thermal calculation for 72 t/h of waste gas and 24.5 t/h of steam
b) Thermal calculation for 72 t/h of waste gas and 30 t/h of steam
c) Thermal calculation for 102 t/h of waste gas and 30 t/h of steam
d) Thermal calculation for 72 t/h of waste gas and 50 t/h of steam
The end result was to determine the impact of flue gas bypass on the operation of the boiler, which was achieved by reading out the change of temperature depending on the percentage of flue gas bypassed in individual parts of the boiler. The basics of this process and some information about the fuel are given in the first part of the thesis. The conclusion about the power plant is given in the last part of the thesis.

• Keywords: generator pare; mimoilaženje; izgaranje; dimni plinovi; radna tvar
• Keywords (english): steam generator; bypass; combustion; flue gases; working substance
• Language: croatian
• URN:NBN: urn:nbn:hr:235:368055
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-11-26 16:52:23